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A converging lens has a focal length of 20 cm. A 1 cm tall object is placed 35 cm in front of the lens. Find the image location, size, and explain it
A 0.15 kg ball hits a wall with a velocity of (4.00 m/s) + (6.50 m/s) + (5.00 m/s) . It rebounds from the wall with a velocity of (2.00 m/s) + (3.50 m/s) + (-3.20 m/s). What is the change in the ball's momentum
A railway car moves past you at high speed. According to an observer riding on the railway car, a clock at the front of the car is synchronized with an identical clock at the rear of the car.
a pen contains a spring with a spring constant of 228 nm. when the tip of the pen is in its retracted position the
A person with perfect pitch sits on the bus bench listening to the 442 Hz horn of an approaching car. If the person detects a frequency of 479 Hz, how fast is the car moving.
At a sports car rally, a car starting from rest accelerates uniformly at a rate of 9.0 m/s^2 over a straight-line distance of 100 m. Does the driver beat this time
a copper bar 2.5 m long has a circular cross section of radius 2 cm. one end is kept at 80 oc and the other end is kept
A sled is dragged along a horizontal path at a constant speed of 1.5 m/s by a rope that is inclined at an angle of 30.0° with respect to the horizontal, How much work is done by the rope on the sled
A generator can be made using the component of Earth's magnetic field that is parallel to Earth's surface. Estimate the maximum emf induced in the coil by Earth's magnetic field
A particle moves from Xi = 0 to Xf = 5.0 meter while being acted upon by a single force F = 3X^2 directed along the X axis. Calculate the change in the kinetic energy during this motion
Calculate the wavelength of light in vacuum that has a frequency of 6.0 1011 Hz and What is its wavelength in water
You push on the chair with a force of = 35.0 directed at an angle of 43.0 below the horizontal and the chair slides along the floor.Using Newton's laws, compute the magnitude of the normal force that the floor exerts on the chair.
A solenoid contains 780 coils of very thin wire evenly wrapped over a length of 17.5cm . Each coil is 2.50cm in diameter. what is the magnetic field at its center
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